CD74HC00ME4 NAND Gate IC Equivalent & Substitute Parts

Part Overview

The CD74HC00ME4 is a 4-channel 2-input NAND gate logic IC manufactured by Texas Instruments in a 14-SOIC surface mount package. This part is discontinued at DiGi Electronics, making equivalent substitute parts necessary for ongoing design and production requirements. The 74HC00 series represents a standard logic function across multiple manufacturers, enabling direct functional substitution based on electrical and mechanical parameter compatibility.

Substiute Parts

CD74HC00ME4

Texas InstrumentsIn Stock: 1109CD74HC00ME4 Datasheet

Current PartRFQ

CD74HC00M

Harris CorporationIn Stock: 3385CD74HC00M Datasheet

MFR RecommendedRFQ

MC74HC00ADR2G

onsemiIn Stock: 9514MC74HC00ADR2G Datasheet

DirectRFQ

74HC00D,653

Nexperia USA Inc.In Stock: 1017474HC00D,653 Datasheet

MFR RecommendedRFQ

74HC00S14-13

Diodes IncorporatedIn Stock: 120774HC00S14-13 Datasheet

MFR RecommendedRFQ

MC74HC00ADG

onsemiIn Stock: 2540MC74HC00ADG Datasheet

MFR RecommendedRFQ

MM74HC00M

onsemiIn Stock: 4848MM74HC00M Datasheet

MFR RecommendedRFQ

MM74HC00MX

Fairchild SemiconductorIn Stock: 16084MM74HC00MX Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CD74HC00ME4 is determined by strict adherence to the following electrical and mechanical parameters:

Critical Substitution Parameters:

• Logic Type: NAND Gate (4 channels, 2 inputs per channel)
• Package: 14-SOIC surface mount configuration
• Voltage Supply Range: 2V to 6V minimum compatibility
• Input/Output Logic Levels: Must match or exceed specified thresholds
• Operating Temperature Range: Minimum -40°C to 125°C (original part: -55°C to 125°C)
• Propagation Delay: Maximum 15ns @ 6V, 50pF (or faster)
• Output Current Capability: 5.2mA minimum for both high and low states

All substitute parts listed maintain the 74HC00 base product number and are functionally equivalent NAND gate ICs. Substitutes are grouped by manufacturer and packaging configuration (Tube, Tape & Reel, or Cut Tape).

Parameter Comparison

Engineering Selection Recommendations

Primary Substitutes (Highest Compatibility):

MC74HC00ADR2G and MC74HC00ADG (onsemi) are active production parts with ROHS3 compliance, matching the original part's temperature range (-55°C to 125°C for ADG variant) and package configuration. Both feature improved propagation delay (13ns) and lower quiescent current (1 µA), providing performance enhancement over the original specification.

Secondary Substitutes (Temperature Range Limitation):

MM74HC00M (onsemi) and MM74HC00MX (Fairchild Semiconductor) are active production alternatives with identical electrical characteristics to the original part but operate within a reduced temperature range (-40°C to 85°C). These are suitable for applications not requiring the full -55°C lower temperature specification.

Alternative Substitutes (Operational Differences):

74HC00D,653 (Nexperia USA Inc.) and 74HC00S14-13 (Diodes Incorporated) are active production parts with ROHS3 compliance. The Nexperia part features superior propagation delay (7ns) but elevated quiescent current (40 µA) and reduced lower operating temperature (-40°C minimum). The Diodes part maintains standard propagation delay (15ns) with moderate quiescent current (20 µA) and -40°C minimum temperature.

Obsolete Alternative:

CD74HC00M (Harris Corporation) is functionally identical to the original part but is obsolete and RoHS non-compliant, making it unsuitable for new designs requiring regulatory compliance.

Frequently Asked Questions (FAQ)

Q: Can I use MC74HC00ADR2G as a direct replacement for CD74HC00ME4?

A: Yes. MC74HC00ADR2G is electrically and mechanically compatible. Both are 4-channel 2-input NAND gates in 14-SOIC packages with 2V to 6V supply voltage. MC74HC00ADR2G is an active production part with ROHS3 compliance and improved performance characteristics (13ns propagation delay vs. 15ns, 1 µA quiescent current vs. 2 µA).

Q: What is the difference between MC74HC00ADR2G and MC74HC00ADG?

A: Both are onsemi 74HC00 NAND gate ICs with identical electrical specifications. The primary difference is packaging: ADR2G is supplied in Cut Tape (CT) & Digi-Reel format, while ADG is supplied in Tube format. The ADG variant supports the full -55°C to 125°C temperature range, while ADR2G also supports this range. Select based on your procurement and assembly requirements.

Q: Why does 74HC00D,653 have a lower propagation delay (7ns) than the original part (15ns)?

A: Propagation delay specifications can vary between manufacturers due to different measurement conditions and process technology. The 7ns specification for 74HC00D,653 represents faster switching performance. This is a beneficial characteristic for timing-critical applications, provided other electrical parameters remain within acceptable ranges.

Q: Can I use MM74HC00M if my application requires operation below -40°C?

A: No. MM74HC00M operates within -40°C to 85°C temperature range. If your application requires the full -55°C to 125°C range of the original CD74HC00ME4, select MC74HC00ADR2G or MC74HC00ADG, both of which support -55°C minimum operating temperature.

Q: Are all substitute parts ROHS3 compliant?

A: No. CD74HC00M (Harris Corporation) is RoHS non-compliant. All other listed substitutes are ROHS3 compliant. For applications requiring regulatory compliance, avoid CD74HC00M.

Q: What is the significance of the 14-SOIC vs. 14-SO package designation?

A: Both designations refer to 14-pin surface mount packages with identical physical dimensions (0.154", 3.90mm width). The packages are mechanically and electrically interchangeable for PCB assembly purposes. Differences in nomenclature reflect manufacturer conventions rather than functional distinctions.